Steven J Bullied

US Patent:

7201212, Apr 10, 2007

Filed:

Aug 28, 2003

Appl. No.:

10/652643

Inventors:

Steven J. Bullied - Pomfret Center CT, US
Maria A. Herring - Norwich CT, US
Stephen D. Murray - Marlborough CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B22C 9/04
B22D 27/04
B22D 33/04

US Classification:

164516, 1641221, 164137

Abstract:

A method and apparatus are used to cast a number of elements such as turbine engine blades. The blades have an airfoil and a root for securing the blade to a disk. A number of mold sections each have internal surfaces for forming an associated at least one of the elements. The mold sections are assembled and molten alloy is introduced to the assembled mold sections.

US Patent:

7207375, Apr 24, 2007

Filed:

May 6, 2004

Appl. No.:

10/840706

Inventors:

Michael K. Turkington - Manchester CT, US
Delwyn E. Norton - Manchester CT, US
Steven J. Bullied - Pomfret Center CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B22C 9/04

US Classification:

164516, 164 45

Abstract:

A wax or similar material may be molded to a base plate of an investment casting shelling fixture. The molding may provide for enhanced positioning of wax patterns or may provide a precise surface shape for the shell.

US Patent:

7448434, Nov 11, 2008

Filed:

Jun 22, 2006

Appl. No.:

11/473865

Inventors:

Michael K. Turkington - Manchester CT, US
Delwyn E. Norton - Manchester CT, US
Steven J. Bullied - Pomfret Center CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B22C 9/04

US Classification:

164516, 164 45, 164235

Abstract:

A wax or similar material may be molded to a base plate of an investment casting shelling fixture. The molding may provide for enhanced positioning of wax patterns or may provide a precise surface shape for the shell.

US Patent:

7802613, Sep 28, 2010

Filed:

Jan 30, 2006

Appl. No.:

11/343369

Inventors:

Steven J. Bullied - Pomfret Center CT, US
Joshua E. Persky - Manchester CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B22C 9/10

US Classification:

164369

Abstract:

A core for investment casting processes includes a core having one or more ceramic materials; and an exterior layer of metal material not susceptible to oxidation under investment casting operating conditions. A method for casting a turbine engine component having an internal passageway includes the steps of forming one or more mold sections each having internal surfaces and at least one of the aforementioned cores for forming one or more turbine engine components having at least one internal passageway; assembling the one or more mold sections; introducing a molten alloy into the one or more assembled mold sections; and consuming the metal of the at least one core during the process.

US Patent:

7861766, Jan 4, 2011

Filed:

Apr 10, 2006

Appl. No.:

11/402164

Inventors:

Mario P. Bochiechio - Vernon CT, US
Steven J. Bullied - Pomfret Center CT, US
Lea D. Kennard - Manchester CT, US
Carl R. Verner - Windsor CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B22C 9/04

US Classification:

164516, 164 28

Abstract:

In an investment casting process, a composite core is formed as a combination of ceramic casting core element and a non-ceramic casting core element. The core is heated in an oxidative atmosphere and then heated in a non-oxidative atmosphere.

US Patent:

7866371, Jan 11, 2011

Filed:

Sep 12, 2007

Appl. No.:

11/853964

Inventors:

Timothy P. Hasselberg - Middletown CT, US
Lea D. Kennard - Vernon CT, US
Carl R. Verner - Windsor CT, US
Steven J. Bullied - Pomfret Center CT, US
Mark F. Bartholomew - Enfield CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B22C 7/02
B22D 9/04

US Classification:

164412, 164 35, 164 45, 164516

Abstract:

A method of forming a gating fixture for a lost wax casting process includes determining an optimal orientation of a gate in relation to a part, and forming a fixture that can repeatably be used to consistently locate the gate relative to the part. In one example, stereolithography is used to form the fixture.

US Patent:

7882885, Feb 8, 2011

Filed:

Feb 18, 2008

Appl. No.:

12/032839

Inventors:

Steven J. Bullied - Pomfret Center CT, US
Carl R. Verner - Windsor CT, US
Mario P. Bochiechio - Vernon CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B22D 1/00
B22D 33/04

US Classification:

164133, 164137, 1641221, 164361, 164516

Abstract:

Systems and methods for reducing the potential for riser backfilling during investment casting are provided. In this regard, a representative method for performing investment casting includes: providing a mold having an opening communicating with an interior, the interior having a part cavity and a riser; providing an insert; and using the insert to form a physical barrier to reduce a potential for molten metal to backfill into the riser while the molten metal is introduced into the interior of the mold via the opening.

US Patent:

7918265, Apr 5, 2011

Filed:

Feb 14, 2008

Appl. No.:

12/069998

Inventors:

Carl R. Verner - Windsor CT, US
Steven J. Bullied - Pomfret Center CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B22C 9/04
B22D 27/04

US Classification:

164516, 1641222, 164361

Abstract:

An investment casting mold article includes a wall for retaining casting material and a cavity defined by the wall. The cavity includes an airfoil portion, a root portion adjacent to the airfoil portion, and a labyrinth seal portion extending from the root portion.